99.36: What happens to the ijrnpp0b,jmoj12k/7pznm,7 t6 ex1 v unertia of an object when its velocity is doubled?

  02.14: An intrinsic property of m o7a*wei . /jm35nldwtatter is one that does not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic property?jtwm i7/n3alw5*d.oe

  04.16: A 20 kg boulder rests on the surface of thsabg jx0t 064;j gd0bue Earth. Assume the Earth has mass abg6 jx;st 4gu0jd00b $5.98 \times 10^{24} \; kg$ and $g = 10\;m/s^{2}$ . What is the magnitude of the gravitational force that the boulder exerts on the Earth?

  09.12: A 5.0 kg sphe 9g47u)vlwmto +ot.i2 )y ulcure is in free fall near the surface of the Earth. What is the magnitude g.cto72oy94lmlu)t iv w uu+ )of the gravitational force acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocityntek flbw.+62 to increase while its acceleration decreases?6 k flw+e2.btn

  00.11: A certain particle undergoes erratic motion. At every point in its mur4d*w sd bod5s04hh +otion, the dire +d5dr4bhs4uo hwsd0 *ction of the particle’s momentum is ALWAYS

  17.14: A block is susp ngx+br*5txf 1n *)tniended in the air at the end of a string held by a person. The person pulls5+ 1*n) gxtixftr bnn* on the string uniformly accelerating the block upward for a short time. During this time, which one of the following choices correctly identifies the Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of the;l/il97x dq5lyyb2i0 xrg(vd following situations is the net force constantly zero on the objeli;07 5/vylrx9dy dlx2ibq g(ct?

  13.28: An object is in free fall close to the ground. A person inpr/z10 q r/lzatervenes and slows the object uniformly to rest. Which one of the folla/rz0rq plz/ 1owing statements must be true about the magnitude of the acceleration of the object as it is being stopped by the person? The magnitude of the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium haeyit6y: ,iyl -.dsexk q,m j*7s three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnm e*e:i6 t7 .-,,kslyy qxyjiditude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combinlf )t go6 aaor51uf3z0e to form a resultant with a magnitude of which of the followingazo0f3uo5 glat )r16f

  10.06: Which of the following statements is most closely associated with Newtonfp dzufo- 4*j-’s Third Law of Motion -fzjopd*- fu4?

  95.06: The reaction force d .)km 4znk;nt/j1lmzr oes not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerati e)l 7gzy8v.w*-ezr zdng upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force actin8 y-zrz7ewzl *v.ge) dg on the box by the Earth?

  15.15: A skydiver falls downward thro p+1bw av:.ep4qv;lltzd 7ki3 ugh the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistancvd p3b7;ktl4+ap:li1 zqe wv. e acting on the skydiver during the fall?

  06.08: A baseball is thrown by a p d 5uz;eqlt0gxfb ar5m2+:r 2yitcher with a speed of 35 m/s. The batterswings and hits the q+r d:xl22geu5a mt5 ;fyrb0zball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest oq bj(6e:j 0mei:/kyhdn a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law p0y: (qe i :h6bmjjek/dair force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab condm*v;-g g, id0(ie00w urp oknuucting an experiment related to Newv 0mu,-(0eio;girkgw0nu d p* ton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were d +fu5,c5wb w6w4wc hxgn6ci; goubled while at the same time the mass of the objbgc+w ;i6 uwhw5fg5,6cxcw 4nect was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accel y+ 0rcg2bhvpmdetq e77r ++-gerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerat7r b2pyg0c+ hvemr d+eg+ 7q-ting the car is:

  99.05: A tractor-trailer truck is traveling down t(xmpp31,nqy;htohz. dd 6 ig)he road. The mass of the trailer is 4 times the mass of the traxm dgdn;q1h6.opiz ,hp )3yt(ctor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the folla jv3o u rxelpyy1( m5u1j4.fs5z,wh5owing principles best explains why large tractor-trailer trucks generally accelerate mucm5rlh1 uw5 14 p5yje,zox (3fvus.a jyh more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionlet aqn73.kctpkf h29t0 l4y*vi0yv ed9ss rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the sue07*dy h4t9ttcly3p.n2va kkvf09q ibsequent motion?

  00.13: An object near the surface of the earth with a w wqs9,vcqtu )j ,zv28jeight of 100 newtons is acceler8cvs j)qzj9wv,q ,t2 uated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acceleratvv)ysq2;t3 ys d9l;ixvu) 8ried from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after beg8s lv3uv;2))sqyixy9r d tv i;inning?

  98.32: A 3.0-kg block with initial s 70k 7f9j32ow5df6gdfmnramp -fcn6 t l1kp -xpeed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before coming to axf1 m rf-w- l5nko73m7f6 f9knc2jpd6d0gtp rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a r 2ho4frgee 1;ijrj 4*kough horizontal floor before coer4 jf12*j;hr ek gi4oming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a8bshjzeu+*n( aj,dh6x der uv58x2 h/ horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coeffici+e5bu*8(u hvsnjea8 x2z ,rjdhd6 x h/ent of kinetic friction between the box and the surface is $\mu_k$ = 0.20. The coefficient of static friction between the box and the surface is $\mu_s$ = 0.60. What is the magnitude of the force of friction acting on the box during the push?

  13.16: A block initially moving at 8 m/s accelerates uniformly to restondi 6 c uajc;-/obg70 3qcjo/ on a horizontal surface. The block travels a distance of 12.0 m during th/n3b joa6 gicu-;qo0ocj 7/c de slide. Which one of the following choices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a p izxc,8 p r (aul6kicg,fm6+b:atch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and the dry road is lbc+c6(ix, p , :rmu6 zfakg8i μ .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across a patch of ice at ade8 o0mys; )r1yvckw3 speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction betweeydk310e ;c)8o ysmw rvn the tires and the dry road is μ .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an emergency stop w zf 2 zhnfv2lf-c8 ;kpsio7l6;a4* ybby slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twice as 8la kf 2 6 -;vz7zib fs;2*ol4cfnpwhyfast?

  99.39: The driver of an automobile (z0u nr)pk..q,gtwwjmust carefully control each of the following devices., wj .tkwr.)0 q(ngzup Which of these devices can cause an acceleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket wikyu0qe*0g,5z: pk ltkth a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at take:yt*qu 50zk, kklpg 0eoff?

  07.21: A box slides to the right across a p /yd e62ual cz ,gy.c)5c)egihorizontal floor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts a forc)l c56iyaug.pzd2e,/ye cg c)e M to the left, which is half as large as the force T. Given that there is friction f and the box accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows te n.gv t:jvxk2n3*da 9hree roller coaster tracks of equal length. Assume that xtnev2* .v9a3g j nk:don all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coastn cmm8- uunpy+73kmg2g7bg 9 ter tracks of equal length. Assume that on all tracks the roller coaster carts stmg78 y7b-u9 m mugtgnkc2p+ 3nart from rest at the same elevation and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart reach the finish first?

  02.29: Assume the rollercoaster cartrolls fric hmcb.76 muuo2tionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration at point u6.uh bm7oc2m

  02.40: A box with a mass ofe wb;gxfs 4-a: 50 kg is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would b-xsaw ;e:fbg 4e closest to the coefficient of kinetic friction between the box and the floor if a 250 newton force on the rope is required to move the crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed agains 53(rkbzjlc rg2n ,r0toj 4r ;-bkhx4yt a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coe kklj04o2yn(r3-,hr r jt54bc ;xbzgrfficient of static friction is 0.50. What is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grass mdp99s3 9nm oxwith a constant speed by applying a force P. The arrows in the diagram correctly indicate the directions but not necessarily the magnitudes of the various forces on the lawn mower. Which of the following relations among the various force magnitudes, W, f, N, P is CORRECT?d 9pm99mxso 3n

  06.14: A book leans against a crate on a tablesh7n2,l9* bxz,x:(w6i ka.gsf yq ws y. Neither is moving. Which of the following statements concerning this situation is COR,a2, *6snbxsw ( ylgk:y sw7q.xi9fz hRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is 9/p 0a+)lkymbq7ry 0gk s-n lcpulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is res/)s 0npmy97 a0-kcqlbkl+ry gponsible for the crate’s increase in speedup the hill?